Universal Audio OX Amp Top Box Universal Audio Attenuator/Load Box Operation confirmed. Used approximately 10 times indoors only. Covered with a cloth to prevent dust from entering. Box and all accessories are included. The following is an explanation from the official website: ---- OX is a premium reactive load box and guitar recording system that allows you to get the sound of your favorite tube amp as if it were miked in a studio, and to play and record. With OX, you can emulate microphones, rooms, and speaker cabinets at any volume level, from clean tones to fully cranked sounds. Featuring Universal Audio's groundbreaking dynamic speaker modeling, OX is the first system to accurately emulate speaker behavior, breakup, and cone climbing, making it the world's best speaker attenuator and guitar amp recording solution. ---- I am not considering lowering the price at this time. Returns are not accepted for used items.